C-Block Tracks
C-block rubber tracks built for dependable traction, durability, and daily performance across dirt, gravel, clay, and mixed construction jobsite conditions.
Outfit your Komatsu PC40 mini excavator with heavy-duty replacement rubber tracks built to OEM specs in size 400x72.5Nx70, backed by a 24-month warranty and free freight to the lower 48.
Komatsu PC40 — Track Spec Sheet
- Track size: 400x72.5Nx70
- Width: 400 mm
- Pitch: 72.5 mm
- Links: 70
- Guide: Offset guide
Tread Patterns
- Directional — Angled directional lugs purpose-built for excavation, grading and trenching.
Complete the Komatsu PC40 Rebuild
Every wear part for the Komatsu PC40 undercarriage, fit-verified and ready to ship:
- Front Idler — OEM Part #9237507
- Top Roller — OEM Part #1180-9221
Tracks That Cross Over
The 400x72.5Nx70 track size is shared across these models — same track, verified cross-fit:
The TrackTECH Difference
- Free freight to the lower 48 — every order ships free, with same-day dispatch on in-stock items.
- Continuous steel cord — up to 40% stronger than typical aftermarket tracks, resisting stretch and de-tracking.
- Premium virgin rubber — anti-chunk compound built for long service life in abrasive conditions.
- Drop-forged steel links for strength where the track meets the drive system.
Order your Komatsu PC40 tracks and parts today, or call (850) 816-7898 for build help. Not sure on size or guide? The Track Finder has you covered.
Direct Replacement Rubber Tracks for the Komatsu PC40
Direct replacement rubber tracks for the Komatsu PC40 are built for heavy-duty compact equipment applications where traction, stability, and uptime matter. These tracks are designed for dependable grip, smooth travel, and consistent performance across dirt, clay, gravel, demolition debris, utility work, grading, land clearing, excavation, and mixed jobsite terrain.
Heavy-Duty Construction for Daily Work
Premium virgin rubber compounds help resist tearing, chunking, cracking, dry rot, and premature tread wear under demanding field conditions. Continuous steel cord reinforcement adds internal strength, helps reduce stretching, and supports stable track performance through repeated turning, travel, and loading.
OEM Fit Guarantee
Machine-specific sizing, steel link spacing, and guide lug geometry are built for proper undercarriage engagement on the Komatsu PC40. Precision-aligned fitment helps support smooth travel, stable tracking, reduced vibration, and reliable sprocket contact.
Built to Protect the Undercarriage System
A well-built rubber track helps improve machine control while limiting unnecessary stress on rollers, idlers, and sprockets. For contractors running Komatsu equipment, that means better ride quality, stronger traction, less downtime, and better value over the life of the track.
Frequently Asked Questions
What size rubber track does the Komatsu PC40 use?
The Komatsu PC40 uses a 400x72.5Nx70 rubber track. Note the N (narrow guide) guide-lug type — other guide types won't seat correctly on the rollers. Always confirm against your current track or the machine's spec plate, since some units shipped with more than one option.
Will this track fit my Komatsu PC40?
Yes — this track is matched to the Komatsu PC40 by size and tread pattern. If your machine has a serial break or factory option, send the serial number and we'll verify fitment before shipping.
How long do Komatsu PC40 rubber tracks last?
Most rubber tracks last 1,200–1,600 operating hours depending on terrain, alignment, and tension. Keeping tracks tensioned and clearing debris daily extends life.
Are these OEM or aftermarket Komatsu PC40 tracks?
OEM-grade aftermarket tracks built to factory fitment for the Komatsu PC40 — same dimensions and guide type, continuous steel-cord belt, at a better price than dealer OEM.
How do I confirm the right track size for my Komatsu PC40?
Read the size stamped on the inside of your current track, or measure width x pitch x links. Not sure? Message us and we'll match it.
